<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Logo展示 - 增强版设计</title>
    <style>
        body {
            font-family: 'Arial', sans-serif;
            max-width: 1000px;
            margin: 0 auto;
            padding: 40px 20px;
            text-align: center;
            background-color: #f0f2f5;
        }
        h1 {
            color: #333;
            margin-bottom: 50px;
            font-size: 2.5rem;
            font-weight: 300;
        }
        .logo-showcase {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 60px;
        }
        .logo-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            background: white;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            width: 100%;
            max-width: 500px;
        }
        .logo-container h2 {
            color: #444;
            margin-bottom: 30px;
            font-size: 1.5rem;
            font-weight: 400;
        }
        .logo-display {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 300px;
            background: #f8fafc;
            border-radius: 10px;
            width: 100%;
            margin-bottom: 20px;
        }
        .logo-display svg {
            width: 200px;
            height: 200px;
        }
        .logo-details {
            text-align: left;
            width: 100%;
            padding: 20px;
            background: #f8fafc;
            border-radius: 8px;
        }
        .logo-details h3 {
            color: #333;
            margin-bottom: 15px;
            font-size: 1.2rem;
        }
        .logo-details ul {
            padding-left: 20px;
            margin: 0;
        }
        .logo-details li {
            margin-bottom: 8px;
            line-height: 1.5;
            color: #555;
        }
        .comparison-note {
            background: #eff6ff;
            padding: 25px;
            border-radius: 10px;
            border-left: 4px solid #3b82f6;
            width: 100%;
            max-width: 600px;
            margin-top: 40px;
            text-align: left;
        }
        .comparison-note h3 {
            color: #1e40af;
            margin-top: 0;
            margin-bottom: 10px;
        }
        .comparison-note p {
            margin: 0;
            color: #334155;
            line-height: 1.6;
        }
    </style>
</head>
<body>
    <h1>增强版Logo展示</h1>
    
    <div class="logo-showcase">
        <div class="logo-container">
            <h2>当前应用使用的Logo</h2>
            <div class="logo-display">
                <!-- 直接嵌入增强版logo代码，避免缓存问题 -->
                <svg width="200" height="200" viewBox="0 0 64 64" fill="none" xmlns="http://www.w3.org/2000/svg">
                    <!-- 增强版logo设计 - 带渐变和纹理效果 -->
                    <defs>
                        <!-- 更明显的蓝色彩谱渐变 -->
                        <linearGradient id="enhancedGradient" x1="0%" y1="0%" x2="100%" y2="100%">
                            <stop offset="0%" stop-color="#1e40af" stop-opacity="1" />
                            <stop offset="20%" stop-color="#2563eb" stop-opacity="1" />
                            <stop offset="60%" stop-color="#3b82f6" stop-opacity="0.95" />
                            <stop offset="100%" stop-color="#60a5fa" stop-opacity="0.9" />
                        </linearGradient>
                        
                        <!-- 更明显的网格纹理 -->
                        <pattern id="enhancedTexture" width="8" height="8" patternUnits="userSpaceOnUse">
                            <path d="M0 4h8M4 0v8" stroke="rgba(255,255,255,0.3)" stroke-width="0.8" />
                        </pattern>
                        
                        <!-- 更强的阴影效果 -->
                        <filter id="enhancedShadow" x="-25%" y="-25%" width="150%" height="150%">
                            <feGaussianBlur in="SourceAlpha" stdDeviation="2.5" />
                            <feOffset dx="0" dy="3" result="offsetblur" />
                            <feComponentTransfer>
                                <feFuncA type="linear" slope="0.35" />
                            </feComponentTransfer>
                            <feMerge>
                                <feMergeNode />
                                <feMergeNode in="SourceGraphic" />
                            </feMerge>
                        </filter>
                        
                        <!-- 增强的中心光晕 -->
                        <radialGradient id="enhancedGlow" cx="50%" cy="50%" r="50%" fx="50%" fy="50%">
                            <stop offset="0%" stop-color="white" stop-opacity="1" />
                            <stop offset="40%" stop-color="white" stop-opacity="0.9" />
                            <stop offset="100%" stop-color="white" stop-opacity="0.5" />
                        </radialGradient>
                    </defs>
                    
                    <!-- 主圆形背景 - 带强化阴影和纹理 -->
                    <circle cx="32" cy="32" r="28.5" fill="url(#enhancedGradient)" filter="url(#enhancedShadow)" />
                    <circle cx="32" cy="32" r="27" fill="url(#enhancedTexture)" opacity="0.7" />
                    
                    <!-- 中心圆点 - 强化光晕效果 -->
                    <circle cx="32" cy="32" r="10" fill="url(#enhancedGlow)" opacity="1" />
                    
                    <!-- 明显的光影效果 -->
                    <circle cx="26" cy="26" r="5" fill="white" opacity="0.95" />
                    <circle cx="40" cy="40" r="3.5" fill="white" opacity="0.8" />
                    <circle cx="24" cy="37" r="2.5" fill="white" opacity="0.7" />
                    
                    <!-- 增强的光晕效果 -->
                    <circle cx="32" cy="32" r="13" fill="none" stroke="white" stroke-width="1" opacity="0.7" />
                    <circle cx="32" cy="32" r="19" fill="none" stroke="rgba(255,255,255,0.4)" stroke-width="0.8" />
                </svg>
            </div>
            
            <div class="logo-details">
                <h3>设计特点</h3>
                <ul>
                    <li>增强的四色蓝色彩谱渐变，提供更丰富的视觉层次</li>
                    <li>明显的网格纹理图案，增加细节和质感</li>
                    <li>强化的阴影效果，提升立体感和深度</li>
                    <li>中心圆点使用光晕渐变，增强明亮度和视觉焦点</li>
                    <li>多个高光点，创造自然的光影效果</li>
                    <li>双层光晕，增强整体通透感</li>
                </ul>
            </div>
        </div>
        
        <div class="comparison-note">
            <h3>查看效果提示</h3>
            <p>如果在主应用中没有看到明显变化，可能是由于浏览器缓存问题。您可以尝试以下方法：</p>
            <ul>
                <li>在主应用页面按下 Ctrl+F5（Windows）或 Cmd+Shift+R（Mac）强制刷新</li>
                <li>清除浏览器缓存后重新加载页面</li>
                <li>使用浏览器的隐身模式访问应用</li>
                <li>直接使用此展示页面的设计效果</li>
            </ul>
        </div>
    </div>
</body>
</html>